主瓣多假目标干扰收发联合抑制方法

doi:10.12305/j.issn.1001-506X.2021.06.05

Abstract

Abstract:

Aiming at the mainlobe multiple false targets jamming confrontation problem, a space time phase coded multiple input multiple output(STPC-MIMO)signal and mismatch filter joint design method is proposed from the urgent need for radar anti-jamming in modern electronic warfare. This method adaptively adjust the spatial distribution of the jamming energy in the echo through the STPC-MIMO signal design to achieve the spatial separation of the true and false targets, and then combined with the mismatch filter design to achieve effective suppression of mainlobe multiple false targets under the condition of controllable signal noise to ratio loss. In addition, because the joint optimization method of transceriver needs to recognize the interference, the method of obtaining false target parameters based on STPC-MIMO signal echo is further proposed to form a waveform design jamming cognitive closed-loop radar detection system. Finally, simulation experiments verify the effectiveness of the proposed method.

Key words: anti-jamming, mainlobe multiple false targets jamming, multiple input multiple output (MIMO) radar, space time phase coded (STPC), mismatched filtering

CLC Number:

TN974

Yang ZHANG, Yinsheng WEI, Lei YU. Joint suppression method of mainlobe multiple false targets jamming transceriver[J]. Systems Engineering and Electronics, 2021, 43(6): 1486-1496.

Figures/Tables 14

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References 22

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参数	数值
收发天线单元间距d/m	0.15
发射天线单元数M	5
接收天线单元数N	5
载频f₀/GHz	1
脉冲宽度T/μs	20
脉冲重复周期T_r/μs	100
脉冲积累数L	256

参数	角度/(°)	速度/(m/s)	延迟PRI数
真目标	90	20	0
假目标1	85	-60	1
假目标2	90	60	2
假目标3	95	300	3

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Joint suppression method of mainlobe multiple false targets jamming transceriver

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